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Home
Wave Optics Test - 11
Wave Optics Test - 11
Result
Wave Optics Test - 11
/
Score
-
Rank
Time Taken:
-
Question
1/10
4 / -1
The distance between the first dark and bright band formed in Young's double slit experiment with bandwidth B is
Correct
Wrong
Skipped
A
Correct
Wrong
Skipped
B
B
Correct
Wrong
Skipped
C
Correct
Wrong
Skipped
D
Question
2/10
4 / -1
In a Fresnel biprism experiment, the two positions of lens give separation between the slits as 16 cm and 9 cm, respectively. What is the actual distance of separation?
Correct
Wrong
Skipped
A
12.5 cm
Correct
Wrong
Skipped
B
12 cm
Correct
Wrong
Skipped
C
13 cm
Correct
Wrong
Skipped
D
14 cm
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Solutions
Question
3/10
4 / -1
In Young's double slit experiment, first slit has width four times the width of the second slit. The ratio of the maximum intensity to the minimum intensity in the interference fringe system is
Correct
Wrong
Skipped
A
2 : 1
Correct
Wrong
Skipped
B
4 : 1
Correct
Wrong
Skipped
C
9 : 1
Correct
Wrong
Skipped
D
8 : 1
Question
4/10
4 / -1
If white light is used in Young's double slit experiment
Correct
Wrong
Skipped
A
no interference pattern is formed
Correct
Wrong
Skipped
B
white fringes are formed
Correct
Wrong
Skipped
C
central bright fringe is white
Correct
Wrong
Skipped
D
central bright fringe is coloured
Question
5/10
4 / -1
In the diffraction pattern of a single slit
Correct
Wrong
Skipped
A
all bands are uniformly bright
Correct
Wrong
Skipped
B
all bands are uniformly wide
Correct
Wrong
Skipped
C
central band is narrower
Correct
Wrong
Skipped
D
central band is wider
Question
6/10
4 / -1
In which of the following is the interference due to the division of wavefront ?
Correct
Wrong
Skipped
A
Young's double slit experiment
Correct
Wrong
Skipped
B
Fresnel's biprism experiment
Correct
Wrong
Skipped
C
Liyod's mirror experiment
Correct
Wrong
Skipped
D
Demonstration colours of thin film
Question
7/10
4 / -1
A beam of electron is used in an YDSE experiment. The slit width is d. When the velocity of electron is increased, then
Correct
Wrong
Skipped
A
no interference is observed
Correct
Wrong
Skipped
B
fringe width increases
Correct
Wrong
Skipped
C
fringe width decreases
Correct
Wrong
Skipped
D
fringe width remains same
Question
8/10
4 / -1
A Young's double slit experiment uses a monochromatic source. The shape of the interference fringes formed on a screen is
Correct
Wrong
Skipped
A
hyperbola
Correct
Wrong
Skipped
B
circle
Correct
Wrong
Skipped
C
straight line
Correct
Wrong
Skipped
D
parabola
Question
9/10
4 / -1
In the phenomenon of interference, energy is
Correct
Wrong
Skipped
A
destroyed at bright fringes
Correct
Wrong
Skipped
B
created at dark fringes
Correct
Wrong
Skipped
C
conserved but it is redistributed
Correct
Wrong
Skipped
D
same at all points
Question
10/10
4 / -1
In Young's double slit experiment, the aperture screen distance is 2 m. The slit width is 1 mm. Light of 600 nm is used. If a thin plate of glass(μ =1.5) of thickness 0.06 mm is placed over one of the slits, then there will be a lateral displacement of the fringes by
Correct
Wrong
Skipped
A
zero
Correct
Wrong
Skipped
B
6 cm
Correct
Wrong
Skipped
C
10 cm
Correct
Wrong
Skipped
D
15 cm
Re-attempt
-
Correct (
-
)
Wrong (
-
)
Skipped (
-
)
1
2
3
4
5
6
7
8
9
10
Re-attempt
-
Correct (
-
)
Wrong (
-
)
Skipped (
-
)
1
2
3
4
5
6
7
8
9
10
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